redash/migrations/create_visualizations.py
2014-02-09 20:03:32 +02:00

70 lines
2.7 KiB
Python

import json
from playhouse.migrate import Migrator
from redash import db
from redash import models
if __name__ == '__main__':
default_options = {"series": {"type": "column"}}
db.connect_db()
if not models.Visualization.table_exists():
print "Creating visualization table..."
models.Visualization.create_table()
with db.database.transaction():
migrator = Migrator(db.database)
print "Adding visualization_id to widgets:"
field = models.Widget.visualization
field.null = True
migrator.add_column(models.Widget, models.Widget.visualization, 'visualization_id')
print 'Creating TABLE visualizations for all queries...'
for query in models.Query.select():
vis = models.Visualization(query=query, name="Table",
description=query.description or "",
type="TABLE", options="{}")
vis.save()
print 'Creating COHORT visualizations for all queries named like %cohort%...'
for query in models.Query.select().where(models.Query.name ** "%cohort%"):
vis = models.Visualization(query=query, name="Cohort",
description=query.description or "",
type="COHORT", options="{}")
vis.save()
print 'Create visualization for all widgets (unless exists already):'
for widget in models.Widget.select():
print 'Processing widget id: %d:' % widget.id
vis_type = widget.type.upper()
if vis_type == 'GRID':
vis_type = 'TABLE'
query = models.Query.get_by_id(widget.query_id)
vis = query.visualizations.where(models.Visualization.type == vis_type).first()
if vis:
print '... visualization type (%s) found.' % vis_type
widget.visualization = vis
widget.save()
else:
vis_name = vis_type.title()
options = json.loads(widget.options)
vis_options = {"series": options} if options else default_options
vis_options = json.dumps(vis_options)
vis = models.Visualization(query=query, name=vis_name,
description=query.description or "",
type=vis_type, options=vis_options)
print '... Created visualization for type: %s' % vis_type
vis.save()
widget.visualization = vis
widget.save()
with db.database.transaction():
migrator = Migrator(db.database)
print "Setting visualization_id as not null..."
migrator.set_nullable(models.Widget, models.Widget.visualization, False)
db.close_db(None)